Q.

Aluminium chloride in acidified aqueous solution forms a complex ‘A’, in which hybridisation state of Al is ‘B’. What are ‘A’ and ‘B’, respectively        [2019]
 

1 [Al(H2O)6]3+,sp3d2  
2 [Al(H2O)4]3+,sp3  
3 [Al(H2O)4]3+,dsp2  
4 [Al(H2O)6]3+,d2sp3  

Ans.

(1)